ISO 26906-2009 液体比重测定法.流量测量结构中的Fishpasses

标准号：ISO 26906-2009
中文标准名称：液体比重测定法.流量测量结构中的Fishpasses
英文标准名称：Hydrometry - Fishpasses at flow measurement structures
标准类型：A53
发布日期：2009/4/1 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：A53
引用标准：ISO 772;ISO 14139
适用范围：This International Standard specifies requirements for the integration of fishpasses with flow measurementstructures. It identifies those fishpasses which have satisfactory hydrometric calibration data and givesmethods for computing combined flows and uncertainties.NOTE Measurement structures and fishpasses have inherently different hydraulic performance criteria. Watermeasurement structures perform better with uniform flow patterns; conversely, fish passage performance is improved bythe variability of the flow conditions that allow fish and other aquatic inhabitants to select the passage conditions that bestmeet their mode of movement. This International Standard does not suggest that the fishpasses discussed are thepreferred methods of passage or that they are good enough that passage performance can be sacrificed to obtain a singlestructure that does both.